Machine for



J. R. PERRY. MACHINE FOR APPLYING ROSIN 0R RESINOUS MATERIAL T0 VIOLIN BOWS.

APPLICATION FILED MAR- I4, I9l9.

Patented Dec. 2, 1919.

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UNITED STATES PATENT OFFICE.

JOSEPH R. PERRY, F WILKES-BARBIE PENNSYLVANIA.

MACHINE FOR APPLYING ROSIN OR RESINOUS MATERIAL T0 VIOLIN-BOWS.

Specification of Letters Patent.

Patented Dec. 2, 1919.

Application filed March 14, 1919. Serial No. 282,706.

' a drawing of the same, showing its parts,

etc.

My invention relates to the method of applying rosin or any resinous substance to violin bows. It consists mainly in pressing the rosin or other substance on the bow hair, instead of rubbing it on, and is done by the use of one or more rollers, covered with felt or any suitable substance, to receive and distribute pulverized rosin or other 'material.

I attain this object by the apparatus, illustrated by the accompanying drawings.

Figure 1 is a view of two rollers attached to a frame by means of screws, upon which the rollers revolve. It is a partly vertical section and partly a front view of the block or frame to which they are attached.

Fig. 2 is an end view showing the roller and frame, and felt, and the bow hair passing below or between the rollers, when in use.

In Fig. 1, we see the rollers a. a. as a sectional view, 6. b. the screws holding them to the frame or block 0. The rollers are to revolve upon the screws 6. b. The bow hair (1, is seen passing up between the rollers. Below the block 0 extends the frame 6, upon which frame is glued a felt pad f, for the purpose of distributing, evenly, the rosin or other substance, after the bow has been passed over the rollers. Heavy lines on rollers show the .felt cover. In operating this rosiner, the hair of the bow is placed between the rollers, and the frame is then twisted so as to tighten the hair upon and around the rollers. When the bow is drawn from end to end, the rollers, having been saturated and filled with. powdered rosin, or other resinous material, will press the same into the cells and fibers of which the bow hair is composed, but will not rub off the'surface of the hair as when the bow is applied by rubbing against hard resinous blocks, and will thus save the hair from becoming worn away, and require frequent rehairing while the rosining will be much more lasting and produce purer and stronger, and evener tones, upon the violin strings. 4

In F ig.2, the felt cover is seen cut away at bottom of roller (1, and the hair passed between the rollers, or upon on roller if one roller is used, but the two rollers are much to be preferred.

After the resinous material has been pressed upon the hair, by causing the rollers to revolve as above described, the hair of the bow should be drawn from end to end, over the distributing pad a few times so as to equalize the resinous material and produce an equal and uniform surface. The recesses in block 0 are made for the purpose to prevent the bow hair from get ting under the rollers.

Having thus fully described my discovery and invention, so that any person can easily operate the same, what I claim as new and useful and desire to secure by a United States patent is:

A violin bow rosiner comprising a frame carrying a block having a recess therein and fibrous surfaced roller or rollers rotatably mounted on said block, said block having a pad fastened thereto, the said fibrous surfaces being saturated with rosin or otherresinous materials and operated as and for the purpose specified.

JOSEPH R. PERRY. 

